114 CLAVICOKXIA. [TricJiopferi/x 



moss, &c. ; a few occur under bark or in rotten wood ; a species found 

 under these latter conditions is nearly always a rare one. 



I. Thorax finely margined ; sculpture tuberculate. 

 i. Thorax evidently broader than elytra. 



1. Posterior angles of thorax plainly produced. 



A. Head and thorax black, elytra rufescent . . T. Sab.^!, Matlli. 

 U. Upper surface entirely castaneous ; form 



rather narrow T. Championis, Matth. 



C. Head and thorax black ; elytra fusco-piceous. 



a. Elytra shorter ; tliorax broadest in middle. T. TIIORACICA, Waltl. 



b. P]lytra longer. 



a*. Thorax distinctly broadest at base. 



af. Antennas yellow, longer T. Atomaeia, De Oeer. 



bf. Antennas blackihh, sliorter . . . , T. brevicoenis, Mots. 

 b*. Thorax about as broad at base as in 



middle T. convexiuscula, Mots. 



D. Upper surface entirely deep black. 



a. Sides of body with long outstanding seta; . T. GKANDICOLLIS, Mannh, 

 h. Sides of body without outstanding setas. 

 a*. Antennae and legs pitch-black. 



af. Posterior angles of thorax much pro- 

 duced and curved T. feateecula, Mafth. 



bf . Posterior angles of thorax not much 



produced T. L.^jtitia, Matlh. 



b*. Legs lighter or darker yellow. 

 af . Antennas pitch-black. 



aj. Antennte short T. antheacina, Matth. 



bj. Antenu£B long T. attenpata, Gyll. 



bf . Antennas more or less obscurely yel- 

 low, 

 aj. Elytra broad, parallel-sided . . . T. lata, Mots. 

 b^. Elytra more or less narrowed 

 towards apex, 

 *. Thorax very shiny ; elytra dull . T. sem:initens, Matth. 

 **. Thorax not much more shiny 

 than elytra. 

 f. Elytra longer ; size larger ; 



mouth organs yellow . . T. fasciculaeis, Herlst. 

 f f . Elytra shorter ; size 

 smaller ; mouth organs 

 pitchy T. Caegonaeia, Matth. 



2. Posterior angles of thorax not much produced. 



A. Colour griscous-brown : elytra longer than 



broad, dilated at the middle T. Edithia, Matth. 



B. Colour fuscous ; elytra quadrate, parallel- 

 sided T. FUSCULA, Matth. 



ii. Thorax scarcely, or not at all, broader than elytra. 

 1. AntennaB black or pitchy-black. 



A. Autennse with eighth joint incrassato . . . T. picicoENiS, MartH/*. 

 P. Antennae with eighth joint not incrassate. 

 a. Anterior tarsi of male dilated. 



a*. Antenna; longer J elytra oblong, parallel- 

 sided ' T. lONaicORNiS, Mannh. 



b*. Antenna; shorter; elytra somewhat 

 dilated behind, or about middle. 



